Siemens Simotics T-1FW6 Operating Instructions Manual page 62

Installation
4.1 Safety guidelines relating to installation
Electrical shock hazard
Every movement of the rotor compared with the stator and vice versa induces a voltage at
the stator power connections.
When the motor is switched on, the stator power connections are also at a specific voltage.
If you use defective cable ports, you could suffer an electric shock.
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Risk of crushing when the rotor is installed
There is a risk of crushing when the rotor of an installed torque motor rotates!
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Sharp edges and falling objects
Sharp edges can cause cuts and falling objects can injure feet.
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WARNING
Only mount and remove the electrical components if you are qualified to do so.
Any work carried out at the motor must always be done with the system in a no-voltage
condition.
Do not touch the cable ports. Correctly connect the stator power connections, or insulate
them properly.
Do not disconnect the power connections when the stator is under voltage (live).
Only use the specific power cables intended for the purpose.
First connect the protective conductor (PE).
Connect the cable shield through a wide area.
First connect the power cable to the stator before you connect the power cable to the
inverter.
First disconnect the connection to the inverter before you disconnect the power
connection to the stator.
Disconnect the protective conductor PE last.
CAUTION
Wear safety gloves.
Take extreme care when performing any work.
CAUTION
Always wear safety shoes and safety gloves!
1FW6 external rotor built-in torque motors
Operating Instructions, 12/2020, A5E49196960B AB